#!/usr/bin/env python3
# -*- coding=utf-8 -*-
# 题目：输出 9*9 乘法口诀表

def f1():
    for a in range(1, 10):
        for b in range(1, a+1):
            print(f"{a}*{b}={a*b}", end=" ")
        print()


f = f1
if __name__ == "__main__":
    f()
